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authorMattias Andrée <maandree@kth.se>2017-03-07 18:30:13 +0100
committerMattias Andrée <maandree@kth.se>2017-03-07 18:30:13 +0100
commitf628ef951d7775e680426da286c51be6a6933a14 (patch)
tree0c9bd38750d20232887c7c33537068a79ffe4d7c /src/plugins
parentForgot commit this... (diff)
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alsa: use default card by default and add support for lookup by cardname
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to '')
-rw-r--r--src/plugins/alsa.py39
1 files changed, 31 insertions, 8 deletions
diff --git a/src/plugins/alsa.py b/src/plugins/alsa.py
index 56a5547..68d47bf 100644
--- a/src/plugins/alsa.py
+++ b/src/plugins/alsa.py
@@ -25,7 +25,9 @@ class ALSA:
ALSA volume controller
@variable cardindex:int The index of the audio card
- @variable cardname:str The name of the audio card
+ @variable cardname:str The name of the audio card, will be
+ 'default' if the default audio card is selected
+ using it's logical name or logical index
@variable mixername:str The name of the mixer
@variable mixer:alsaaudio.Mixer The mixer object used internally by this class
'''
@@ -35,19 +37,32 @@ class ALSA:
'''
:int Channel index that selects all available channels
'''
+
+ DEFAULT_CARD = -1
+ '''
+ :int Logical index of the default audio card
+ '''
- def __init__(self, cardindex = 0, mixername = 'Master'):
+ def __init__(self, card = -1, mixername = 'Master', *, **kwargs):
'''
Constructor
- @param cardindex:int The index of the audio card
+ @param card:int|str The index or name of the audio card,
+ `ALSA.DEFAULT_CARD` (-1) or 'default' for the default card
@param mixername:str The name of the mixer
'''
- self.cardindex = cardindex
- self.cardname = alsaaudio.cards()[cardindex]
+ if card == -1 and 'cardindex' in kwargs: # For backwards compatibility
+ card = kwargs['cardindex']
+ if isinstance(card, str):
+ if card == 'default':
+ card = -1
+ else:
+ card = alsaaudio.cards().index(card)
+ self.card = card
self.mixername = mixername
- self.mixer = alsaaudio.Mixer(self.mixername, 0, self.cardindex)
+ self.mixer = alsaaudio.Mixer(self.mixername, 0, self.card)
+ self.cardname = mixer.cardname
def get_volume(self):
@@ -116,12 +131,20 @@ class ALSA:
@staticmethod
- def get_mixers(cardindex = 0):
+ def get_mixers(card = -1, *, **kwargs):
'''
Get the names of all available mixers for an audio card
- @param cardindex:int The index of the audio card
+ @param card:int|str The index or name of the audio card,
+ `ALSA.DEFAULT_CARD` (-1) or 'default' for the default card
@return :list<str> The names of all available mixers for an audio card
'''
+ if card == -1 and 'cardindex' in kwargs: # For backwards compatibility
+ card = kwargs['cardindex']
+ if isinstance(card, str):
+ if card == 'default':
+ card = -1
+ else:
+ card = alsaaudio.cards().index(card)
return alsaaudio.mixers(cardindex)